Welcome to a cute and addictive custom mod Clickertale! You can guess it by its name, and yes, your survival in the underworld depends on taps. Click to get more souls to exchange for Toriel, Asgore, Undyne, Napstablook, and other famous characters in the shop. They give you a boost to taps, so you can collect the local currency quicker and buy more perks.
Fights are also integrated! But they’re completely different from the origins and require you to literally pat your opponent to the death! Take it as a fine joke, though creative and quite curious.